颈丛神经阻滞时,病人出现发音嘶哑或失音,呼吸困难,是由于何神经受阻滞()
A.颈交感神经
B.颈迷走神经
C.三叉神经
D.面神经
E.喉返神经
参考答案:E
“谁污染谁治理”原则属于环境影响评价中的( )政策。
A.污染者负担
B.受益者补偿
C.开发者恢复
D.预防为主、防治结合
The weather in London is so changeable that people always take their umbrellas with them _____ rain.
A.in case of
B.in need of
C.in spite of
D.in favor of